#define  _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<assert.h>
void* my_memcpy(void* dest,const void* src,size_t num)
{
	void* ret = dest;
	assert(dest && src);
	while (num--)
	{
		*(char*)dest = *(char*)src;
		((char*)dest)++;
		((char*)src)++;
	}
	return ret;
}
int main()
{
	int arr1[] = { 1,2,3,4,5,6,7,8,9,10 };
	int arr2[10] = {0};
	my_memcpy(arr2, arr1, 17);
	for (int i = 0;i < 10;i++)
	{
		printf("%d ", arr2[i]);
	}
	return 0;
}